DNS response history for ns401.rootservercloud.com

ns401.rootservercloud.com is a DNS nameserver monitored by NameServerHistory. This page provides historical DNS response-time data, nameserver uptime signals, DNS latency observations, resolved IP history, successful response counts, failed response counts, and reliability indicators for this nameserver.

The selected UTC date is 2026-08-26. For this date, NameServerHistory found 41 DNS check records, 41 successful responses, 0 failed responses, and 146 ms average response time. Current selected-date status: At least one successful DNS response was recorded for the selected date.

  • Use this report to investigate historical DNS uptime and nameserver reliability.
  • Compare DNS latency changes, failed DNS checks, and response behavior over time.
  • Review the latest resolved IP address and raw DNS check history for ns401.rootservercloud.com.
Records on Selected Date

41

Historical checks stored for this nameserver on selected date

Average Latency

146 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 13:24

All timestamps shown in UTC

Latest Resolved IP on Selected Date

23.239.27.53

Most recently resolved hosting IP on selected date

Successful Responses

41

Checks that returned a measurable response

Failed Responses

0

Checks with no response or no returned latency

Failure Rate

0%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns401.rootservercloud.com

Showing DNS history for 2026-08-26 UTC. Newest records appear first.

Latency bars are scaled to a maximum of 5000 ms for quick visual comparison.

# Query Time (UTC) Correlation ID Latency Response IP Address
41 2026-08-26 13:24 639233466171592605
101 ms 23.239.27.53
40 2026-08-26 13:07 639233455747096265
104 ms 23.239.27.53
39 2026-08-26 12:50 639233445367152284
103 ms 23.239.27.53
38 2026-08-26 12:32 639233434974187439
213 ms 23.239.27.53
37 2026-08-26 12:15 639233424567558554
114 ms 23.239.27.53
36 2026-08-26 11:58 639233414056832719
112 ms 23.239.27.53
35 2026-08-26 11:40 639233403515141099
199 ms 23.239.27.53
34 2026-08-26 10:45 639233370841350248
202 ms 23.239.27.53
33 2026-08-26 10:28 639233360361507238
104 ms 23.239.27.53
32 2026-08-26 10:11 639233350067824371
205 ms 23.239.27.53
31 2026-08-26 09:54 639233339545274518
209 ms 23.239.27.53
30 2026-08-26 09:36 639233329214918079
104 ms 23.239.27.53
29 2026-08-26 09:19 639233318749762337
114 ms 23.239.27.53
28 2026-08-26 09:01 639233308387917838
102 ms 23.239.27.53
27 2026-08-26 08:44 639233297961740122
104 ms 23.239.27.53
26 2026-08-26 08:27 639233287487159094
134 ms 23.239.27.53
25 2026-08-26 08:09 639233276995531707
203 ms 23.239.27.53
24 2026-08-26 07:52 639233266521568229
101 ms 23.239.27.53
23 2026-08-26 07:34 639233256081047431
106 ms 23.239.27.53
22 2026-08-26 06:40 639233223620132921
101 ms 23.239.27.53
21 2026-08-26 06:23 639233213287814244
101 ms 23.239.27.53
20 2026-08-26 06:06 639233202925983161
201 ms 23.239.27.53
19 2026-08-26 05:48 639233192644780696
102 ms 23.239.27.53
18 2026-08-26 05:31 639233182401183833
210 ms 23.239.27.53
17 2026-08-26 05:14 639233172074181051
102 ms 23.239.27.53
16 2026-08-26 04:57 639233161808421455
205 ms 23.239.27.53
15 2026-08-26 04:40 639233151357344052
134 ms 23.239.27.53
14 2026-08-26 04:22 639233141034116946
235 ms 23.239.27.53
13 2026-08-26 04:05 639233130828334142
102 ms 23.239.27.53
12 2026-08-26 03:48 639233120373450007
105 ms 23.239.27.53
11 2026-08-26 03:31 639233110066216193
105 ms 23.239.27.53
10 2026-08-26 02:37 639233078065410564
216 ms 23.239.27.53
9 2026-08-26 02:20 639233067787457832
201 ms 23.239.27.53
8 2026-08-26 02:03 639233057501801162
103 ms 23.239.27.53
7 2026-08-26 01:46 639233047089431703
243 ms 23.239.27.53
6 2026-08-26 01:29 639233036754790688
99 ms 23.239.27.53
5 2026-08-26 01:11 639233026412602472
199 ms 23.239.27.53
4 2026-08-26 00:54 639233016064066127
204 ms 23.239.27.53
3 2026-08-26 00:37 639233005922655772
200 ms 23.239.27.53
2 2026-08-26 00:20 639232995672256907
103 ms 23.239.27.53
1 2026-08-26 00:03 639232985300872416
101 ms 23.239.27.53